CN211730730U

CN211730730U - Anti-jamming structure, printing medium conveying system and image forming device

Info

Publication number: CN211730730U
Application number: CN202021405156.5U
Authority: CN
Inventors: 郭进忠; 王征
Original assignee: Beijing Zhongshe Zhiyin Technology Co ltd
Current assignee: Beijing Zhongshe Zhiyin Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-10-23
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to a printer technical field, concretely relates to anti-sticking paper structure, printing medium transmission system, image forming device. An anti-jamming paper structure comprising: the pressing plate is rotatably arranged on the body and is suitable for mounting the paper pressing wheel; the first driving structure is used for driving the pressing plate to be kept at a first position, and the first position is a position suitable for keeping the paper pressing wheel far away from the paper rolling wheel; the second driving structure is arranged on the outer surface of the body, and drives the pressing plate to move from the first position to the second position, and the second position is suitable for abutting the pressing wheel against the paper filing wheel. The utility model provides an anti-sticking paper structure when the high-speed ink jet printer of big breadth prints the in-process and takes place the card paper problem, can convenience of customers directly take out from printing the passageway with the dead paper of card.

Description

Anti-jamming structure, printing medium conveying system and image forming device

Technical Field

The utility model relates to a printer technical field, concretely relates to anti-sticking paper structure, printing medium transmission system, image forming device.

Background

The large-format high-speed ink-jet printer is suitable for printing large-scale design drawings in image-text printing shops, large design houses and the like.

The printing speed of the large format ink jet printing in the prior art can reach 18-24m per minute, and the printing speed is generally blue printing of A2-A0 format. Large-format printing requires a long paper feeding path for the printing medium, and the paper jam problem is likely to occur due to the deformation of the printing medium and the influence of the ambient temperature and humidity during the high-frequency printing process.

When the paper jam position happens in the machine, especially near the nozzle, the operator needs to go deep into the machine and overcome the paper twisting pressure of the paper pressing wheel to take out the paper from the jammed paper path, which wastes time and labor in operation and affects the printing efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses aim at solving current wide breadth ink jet printer and taking out inconvenient and influence the problem of printing efficiency getting the card paper to a prevent card paper structure, printing medium transmission system, image forming device are provided.

In order to solve the problem, the utility model provides an anti-sticking paper structure, include: the pressing plate is rotatably arranged on the body and is suitable for mounting the paper pressing wheel; the first driving structure drives the pressing plate to be kept at the first position, and the first position is a position suitable for keeping the paper pressing wheel away from the paper rolling wheel; and the second driving structure is arranged on the outer surface of the body and drives the pressing plate to move from the first position to the second position, and the second position is suitable for enabling the paper pressing wheel to be abutted to the paper twisting wheel.

Further, the first driving structure includes: the shifting claw is rotatably arranged on the body and is abutted against the pressure plate; the first elastic piece is arranged on the shifting claw and used for driving the shifting claw to rotate.

Further, the first elastic member is configured as a torsion spring, one torsion arm of which is provided on the finger, and the other torsion arm is provided on the body.

Furthermore, the body is provided with a limiting hole, and the shifting claw is provided with a shifting part which is abutted against the pressing plate and a limiting part which is arranged in the limiting hole.

Further, the second driving structure includes: the opening and closing door is rotatably arranged on the body; and the connecting rod assembly is movably connected between the opening and closing door and the pusher dog.

Further, the connecting rod assembly includes: one end of the push rod is suitable for abutting against the opening and closing door, and the other end of the push rod is suitable for abutting against the pusher dog; at least one supporting block is arranged on the body, a sliding groove is formed in the supporting block, and the push rod is arranged in the sliding groove.

The utility model provides an anti-sticking paper structure still includes: the second elastic piece is sleeved on the push rod and is arranged between the two supporting blocks; and the gear needle is arranged on the push rod to support the second elastic piece in the axial direction of the push rod.

The utility model also provides a printing medium transmission system, include: the anti-jamming paper structure of any one of the above.

The utility model also provides an image forming device, include:

the anti-jamming paper structure of any one of the above;

or a print media transport system as described above.

Further, the opening and closing door is configured as a door body structure of the printing medium cutting buffer.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an anti-sticking paper structure includes: the pressing plate is rotatably arranged on the body and is suitable for mounting the paper pressing wheel; the first driving structure is used for driving the pressing plate to be kept at a first position, and the first position is a position suitable for keeping the paper pressing wheel far away from the paper rolling wheel; the second driving structure is arranged on the outer surface of the body, and drives the pressing plate to move from the first position to the second position, and the second position is suitable for abutting the pressing wheel against the paper filing wheel.

The utility model provides an anti-sticking paper structure is at the normal printing in-process of big breadth high-speed ink jet printer, and second drive structure is under artificial control, and the drive clamp plate is in the second position, makes to press the paper wheel butt on the paper rolling wheel, provides transmission power for print media's transmission. When a paper jam occurs, particularly when the paper jam is dead in the inner position of the machine, the second driving structure is located on the outer surface of the body, so that the operation of a user is facilitated, the second driving structure can be directly controlled to be opened, the pressing plate can be restored to the first position under the action of the first driving structure, the paper pressing wheel is far away from the paper twisting wheel, the paper twisting pressure is released, and the user can conveniently and directly pull out the dead paper jam from the printing channel.

2. The utility model provides a be provided with spacing hole on the body among the anti-sticking paper structure, the pusher dog has the portion of stirring of butt on the clamp plate and sets up the spacing portion in spacing hole, and spacing hole is restricted the rotation stroke of pusher dog in the space in spacing hole, and the spacing effect in usable spacing hole realizes providing stable guarantee to the accurate control of the paper rubbing pressure of pressing paper wheel department simultaneously for the even running of print medium.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an anti-jamming paper structure in embodiment 1 provided by the present invention;

fig. 2 is a schematic structural diagram of a first driving structure in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a connecting rod assembly according to embodiment 1 of the present invention;

fig. 4 is a left side view of the anti-jamming paper structure in embodiment 1 provided by the present invention.

Description of reference numerals:

1-pressing a plate;

2-paper pressing wheel;

3-a first drive configuration; 31-a pusher dog; 32-a first elastic member; 311-a toggle part; 312-a limiting part;

4-a second drive configuration; 41-opening and closing a door; 42-a connecting-rod assembly; 421-a push rod; 422-supporting block; 423-a second elastic member; 424-shift needle;

5-body; 51-a limiting hole; 52-mounting hole.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1 to 4, the anti-jam paper structure provided for this embodiment includes: the pressing plate 1 is rotatably arranged on the body 5 and is suitable for mounting the paper pressing wheel 2; the first driving structure 3 drives the pressing plate 1 to be kept at a first position, and the first position is a position suitable for keeping the paper pressing wheel 2 away from the paper rolling wheel; and a second driving structure 4 arranged on the outer surface of the body 5 and used for driving the press plate 1 to move from the first position to the second position, wherein the second position is suitable for abutting the paper pressing wheel 2 against the paper filing wheel.

The anti-jamming structure in the present embodiment is applied to large format high speed inkjet printing, and in other embodiments, it can also be used in printing apparatuses such as large format laser printers, etc.

In high-speed ink jet printer, the paper twisting wheelset can be provided with the multiunit in printing the passageway, provides sufficient drive power for the transmission of printing medium, all corresponds to there is clamp plate 1 structure in each group of paper twisting wheelset, and in the clamp plate 1 of this embodiment was the ink jet printer, along printing medium biography direction, the clamp plate structure in a set of paper twisting wheel in shower nozzle subassembly the place ahead, and it gos deep into high-speed ink jet printer's inside deeply, when taking out the card paper problem, takes out extremely inconveniently.

The main body 5 in this embodiment is two oppositely disposed supporting plates mounted on the bottom plate of the high-speed ink-jet printer, and the pressing plate 1 is rotatably disposed between the two supporting plates. Wherein, a pin shaft is riveted on the position of the body 5 suitable for installing the pressing plate 1, and a rotating hole is processed on the pressing plate 1 and is sleeved on the pin shaft, so that the pressing plate 1 rotates on the body 5. Specifically, bending edges are formed at both ends of the pressure plate 1 in the length direction thereof, and the rotation holes are formed in the bending edges. The upper end face of the pressing plate 1 is suitable for being provided with a paper pressing wheel 2, a paper twisting wheel (not shown in the figure) is arranged below the paper pressing wheel 2, and the paper pressing wheel 2 and the paper twisting wheel are matched to drive paper passing through the paper pressing wheel and the paper twisting wheel.

The platen 1 in this embodiment needs to have a first position for moving the platen roller 2 away from the pickup roller, as required for printing. In order to achieve the movement of the first position described above, in the present embodiment, a first driving structure is provided, as shown in fig. 2, the first driving structure 3 including: the pusher dog 31 is rotatably arranged on the body 5 and is abutted against the pressure plate 1, the pusher dog 31 is of a U-shaped groove structure, mounting holes are coaxially processed on two groove walls, a pin shaft is riveted above the body, and the pusher dog 31 is sleeved on the pin shaft. A toggle part 311 is formed at the lower end part of the pusher dog 31, and the toggle part 311 is abutted on the pressing plate 1 in the rotating process of the pusher dog 31 so as to drive the pressing plate 1. In order to drive the finger 31, in the present embodiment, a first elastic element 32 is provided on the finger 31, the first elastic element 32 is configured as a torsion spring, the body of which is provided inside the finger 31 and which is threaded on the pin. One torsion arm of the torsion spring is arranged on the pusher dog 31, the other torsion arm is arranged on the body 5, a mounting hole 52 is processed on the body 5, the torsion arm is clamped on the mounting hole 52, the pusher dog 31 rotates under the driving of the torsion spring, in order to limit the rotating stroke of the pusher dog, in the embodiment, a limiting hole 51 is further processed on the body 5, as shown in fig. 4, a limiting part 312 is formed on the pusher dog 31, the limiting part 312 extends into the limiting hole 51, the limiting hole 51 restricts the rotating stroke of the pusher dog 31 in the space of the limiting hole 51, and meanwhile, the limiting effect of the limiting hole 51 can be utilized, so that the accurate control of the paper twisting pressure at the paper pressing wheel 2 is realized, and the stable guarantee is provided for the stable operation of a printing medium.

The platen 1 in this embodiment needs to have a second position where the platen roller 2 abuts against the pickup roller, as required for printing. In order to achieve the movement of the second position, a second driving structure 4 is provided in the present embodiment, and the second driving structure 4 includes: an opening/closing door 41 rotatably provided on the body 5; and a link assembly 42 movably connected between the opening/closing door 41 and the finger 31. The opening and closing door 41 drives the link assembly 42 in the opening and closing process, and the driven link assembly 42 acts on the pressure plate 1 or the pusher dog 31 to drive the pressure plate 1.

As shown in fig. 1 and 3, the connecting rod assembly 42 in the present embodiment includes: the push rod 421, the push rod 421 in this embodiment is a cylindrical push rod. One end of the push rod 421 is adapted to abut against the opening/closing door 41, and the other end is adapted to abut against the finger 31, but in other embodiments, one end of the push rod 421 may directly abut against the pressure plate 1. In order to support the push rod 421, in this embodiment, two supporting blocks 422 are mounted on the body 5, a sliding slot is processed on the supporting blocks 422, and the push rod 421 is inserted into the sliding slot. Of course, in other embodiments, the number of the supporting blocks 422 may be one.

The connecting rod assembly in this embodiment further includes a second elastic member 423, specifically, a compression spring structure, which is sleeved on the push rod 421 and disposed between the two supporting blocks 422, and a pin 424, which is disposed on the push rod 421, wherein a through hole is processed on the push rod 421, and the pin 424 is an elastic pin structure and is embedded in the through hole in an interference fit manner, so as to support the second elastic member 423 in the axial direction of the push rod 421.

The anti-jamming paper structure in this embodiment is in operation:

when the opening and closing door 41 is closed, the opening and closing door 41 strikes the push rod 421, the push rod 421 moves in the sliding groove, the second elastic member 423 is compressed, one end of the push rod 421 strikes against the pusher 31, the pusher 31 is driven to rotate, and the first elastic member 32 is compressed. The moving end 311 of the pusher dog 31 is pressed against the pressing plate 1 by external force to drive the pressing plate 1 to rotate, so that the paper pressing wheel 2 on the pressing plate 1 is pressed on the paper rolling wheel, and the movement at the second position is realized.

When a paper jam occurs, the opening and closing door 42 is opened, and the second elastic member 423 drives the push rod to bounce through the blocking pin 424, so that one end of the push rod is far away from the pusher dog 31. The pusher dog 31 drives the platen 1 to rotate under the reset acting force of the first elastic member 31, so that the platen 2 is far away from the pickup wheel, the pickup pressure is released, and the paper clamped under the platen 2 can be directly taken out conveniently.

Example 2

This embodiment provides a printing medium conveyance system including the paper jam prevention structure described in embodiment 1 above, and having all of its technical advantages.

In addition, in order to stably drive the pressing plate 1, a set of anti-jamming structures in the embodiment 1 is arranged at both ends of the pressing plate 1 in the embodiment.

Example 3

The present embodiment provides an image forming apparatus, specifically a large format inkjet printer, including the printing medium conveying system in embodiment 2, and has all the technical advantages thereof.

Note that the opening/closing door 41 in the present embodiment is directly a door structure of the print medium cutting buffer. In the process of ink-jet printing, a roll paper structure is used, the roll paper needs to be cut according to the printed breadth, in order to ensure the smoothness of a cut, a cutting buffer area needs to be arranged on a printer, and an opening and closing door structure is correspondingly arranged at the general cutting buffer area so as to adjust the size of the buffer area and the pressure of the buffer. The direct door body structure that will have printing medium cutting buffer area in this embodiment has simplified structural design as the switching door of preventing the card paper structure.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An anti-jamming paper structure, comprising:

the pressing plate (1) is rotatably arranged on the body (5) and is suitable for mounting the paper pressing wheel (2);

the first driving structure (3) drives the pressing plate (1) to be kept at a first position, and the first position is a position suitable for enabling the paper pressing wheel (2) to be far away from the paper rolling wheel;

and the second driving structure (4) is arranged on the outer surface of the body (5) and drives the pressing plate (1) to move from the first position to the second position, and the second position is suitable for enabling the paper pressing wheel (2) to abut against the paper twisting wheel.

2. Anti-jamming paper structure according to claim 1, characterized in that the first driving structure (3) comprises:

a pusher dog (31) rotatably provided on the body (5) and abutting against the pressure plate (1);

the first elastic piece (32) is arranged on the shifting claw (31) and used for driving the shifting claw (31) to rotate.

3. The anti-jamming paper structure according to claim 2, characterized in that the first elastic member (32) is configured as a torsion spring, one torsion arm of which is provided on the finger (31) and the other torsion arm is provided on the body (5).

4. The anti-jamming paper structure according to claim 3, characterized in that a limiting hole (51) is arranged on the body (5), and the pusher dog (31) is provided with a toggle part (311) abutting against the pressure plate (1) and a limiting part (312) arranged in the limiting hole (51).

5. Anti-jamming paper structure according to claim 4, characterized in that the second driving structure (4) comprises:

an opening/closing door (41) rotatably provided on the body (5);

and a connecting rod component (42) movably connected between the opening and closing door (41) and the pusher dog (31).

6. The anti-jamming paper structure according to claim 5, wherein the link assembly (42) includes:

a push rod (421), wherein one end of the push rod (421) is suitable for being abutted against the opening and closing door (41), and the other end of the push rod is suitable for being abutted against the pusher dog (31);

at least one supporting block (422) is arranged on the body (5), a sliding groove is arranged on the supporting block, and the push rod (421) is arranged in the sliding groove.

7. The anti-jamming paper structure according to claim 6, further comprising:

the second elastic piece (423) is sleeved on the push rod (421) and is arranged between the two supporting blocks (422);

a needle stopper (424) provided on the push rod (421) to support the second elastic member (423) in an axial direction of the push rod (421).

8. A print media transport system, comprising:

the anti-jam paper structure of any one of claims 1 to 7.

9. An image forming apparatus, comprising:

the anti-jamming paper structure of any one of claims 1-7;

or a print media transport system as claimed in claim 8.

10. The image forming apparatus according to claim 9, wherein the opening/closing door (41) is configured as a door body structure of a printing medium cutting buffer.